Phonograph attachment.



R. L. BAKER. PRONOGRAPH ATTACHMENT,

APPLICATION FILED MAR- 3 l| IFIS- Patented Feb. 12

a Ho 11 0% nonnnrnfnexnn, or aunone, new YORK,'ASSIGNOR or ONE-HALE'ronnivny MORGAN, or AURORA, new YORK.

- all whom may concern:

Be it known that I 'RoBER'r LZ BAKER, a c1t 1zen of the United States,residing at Aurora, in the county of CayugalQState of New York, haveinvented certain new and a useful Improvements in 'PhonographAttachments; and I do hereby declare thel tollowing to be a full, clear,and exact description of the inventioneysuch as will "enable f artitowhich it apperg others skilled in the tains to make and use thesanie.

This invention relates to improvements in phonograph attachments andparticularly to devlce's for cleaning a record .in advance pa-rtlcles ofof the-needle so as to remove. dirt and dust therefrom.

I am aware of the factthat devices have been provided for thesamepurpose as my invention but by reason of the'particular constructionofmy device and byreason of the specifi'c'way'in which it is mountedupon the native parts of the-talkin machine, I attainadvantagesnotattaine by the previous devices One disadvantage of such 1devices already produced is that they are attached tothe shell of thesound box and since they include spring elements, they present readilyvibrated bodies which are 1n position to receive their vibrations fromthe diaphragm" of the sound box through the.

shell of the sound box and when the phonograph is in operation there isa tendency for such devices to vibrate with a singing sound andinterfere with the clear tones of the instrument. In 'my construction,as will be apparent from the followin description, the device is mountedupon t e stem of the needle post and moves therewith as the needle postis moved with the needle. The needle post, of course, has a positivemovement with the needle and not a'vibration such as is imparted to thediaphragm and thus the tendency of the metal portions-of my device tovibrate is prevented;

One object ofthe invention is toprovide a device of this character whichis resilient in its nature so as to readily accommodate itself tovarying conditions'due to the use of longer or shorter needles.

Another andprimary object of the present invention is' to provide acleaning brush which may be mounted upon the stem of the needle post ofa sound box and which will nnonocnern ATTACHMENT.

Specification of Letters Patent. Patented Fl9h$ll'2;"ll918 y hpplieationfiledMarch 31,1916. Serial No. 88,157. it i v gages the sidesof the record groovel the the line 33 of Fig; 2;

the lateral movement of thei neejdle as'ift e' brush will also movelaterally and asfa result of this movement Will .nioie thoroiighly cleanthe record groove. Q. I U

Another object is to provid a structure, in which, while the brushportio'njs movable vertically with respect to thenee'dle and is held'against the record byspring "action, i there will be resistance tolateral move- ,65 inent of the brush with respect to the needle so'thatthe brush will move with the. needle positively as stated above. y l f n.1 Another object is to providef a device oi f M this character in whichthe cleaning element or brush can be removed when out and a new oneplaced therein, without the ne ees; U sity for removing thedevicejfronrthepho- 1 Qg P it; a iOther objects and advantages Yiill.bela}g parent-from the following description when taken inconnection with the'accompanying drawing. 7 y i In the'drawing: HM, H I,Figure 1 is an enlarged.gelevation ot ny invention applied to theneedleclamp of .a phonograph sound-box;

Fig. 2 is a front elevation Fig. 3 is an enlarged-vertical sect nn {9nFig. t is an enlarged section oathe line Referring particularly to theaccompany drawing, 10 represents a clamp whichis provided with a pair ofarms 11 and 12, the former of which has a smooth bored opening while thelatter has a threaded opening. D1sposed through these openings, from thesmooth opening is a screw 13 by means of which the clamp is securedaround the stem or needle post. of the sound box 14 of the phonograph.Formed integrally on this clamp is the forwardly extending resilient arm15, the outer end of which is bowed as at 16 to provide a resilientelement, and from this re'silient bow there is extended downwardly andrearwardly toward the I needle a shorter arm 17. Secured to the underface 0; the outer end of this arm 17 is a transversely extending member18 havin a pair of snring jaws 19 for the detachahle receptiomof theback 20 of the brush 21, which thus extends transversely of the needle.As shown, the arms 15 and 17 and the clamp are formed intep l and=theyare no made of flat spring metal, the-transverse dimension of whichextends transversely of the plane occupied by theneedle and parallelwith the plane of movement of the needle during operation of thephonograph. The device is so applied to the needle post that the brushengages the face of the record in advance of the needle so thatall dirtand foreign substance will be swept out of thegrooves before the needlepasses thereinto.

The fact that the device is attached toithe needle post insures that thebrush will From the foregoing it will be seen that the present device.attached as it is to the stem of the'needle post, will move withtheneedle post ,as the needle is engaged by theconvo lutions at thesides of the record groove and thus the brush will be shifted slightlytransversely of the grooveto efiect aanore thorv ough cleaning. a Byreason of the fact that i the spring portions are fiat and are engagedv'ith their transverse dimensions transversely of the needle, anytendency of the needle post to move laterally independently of the brushis resisted, whilemovemcnt of the needle post and'needle vertically withrespect to the brush is permitted by the resilience of the spring parts.

.Again by the fact that the ounangiof the brush includes the springportion returned upon itself, the brush is brought into cldse proximityto the needle so that the cleaning operation occurs just in advance ofthe needle. a

What is claimed is:

1. The combination with the sound box of. -a phonograph and its needlepost, of a means for cleamnga record-1n connect on with which the soundbox may be used, said cleaning means consisting of a clamp rigidlyengaged with the stem of the needle post, a spring arm carried by theclamp and;ex-

tending laterallytherefrom and returned downwardly and inwardly uponitself to ward the post, and a brush carried by the detached end of thespring arm and ar-- ranged to extend transversely of a needle engaged inthe needle post and to lie in advance thereofand in engagement with arecmay be used, said spring armibeinglformed of flat metal disposed withitsmajor trans verse dimension ,transversely ofthe needle plane wherebylateral movement of? the sisted.

I *2. Acleaning devicefor phonograph; rec} ord disks consisting of aclamp adapted to a be engaged upon and secured to theneedle post of asound box, aspringgarm carried by the clamp end extending laterallythere- 1 from and returned inwardly upon'itself,

to produce portions in overlapping relation,"

said arm having a bowed portion at the junction of its overlappingportions, andva brush carried by the detached end of the re turnedportion and arranged to, lie trans versely of a needle engaged in theneedle post with which the clamp may be engaged and disposed to engagethe surface of a record disk in advance of such a needle, said springarm being formed of fla't resilient] metaland disposed to lie with itsmajor transverse dimension transversely of th l edle plane when theclamp is dwith a'needle'po'st.

In testimony whereof, I a'lfixmy signature,

in the presence of two witnesses.

I A 1 'ROBERT'L. BAKER. Witnesses: i

JOHN H ckey,

EDXMUNDDAUGHTY.

55. I 0rd in connection with which the sound box needle post withrespectto the brush is re-. 1

